zwermann



Patented June 10, 1919.

C. H. ZWEHMANN. TRUCK FOR TUNNEL KILNS APPLICATION FILED ri. Is. IsIa.

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CARL H. ZWERMANN, OF KALAMAZOO, vCvI-IIGAN.

` frnUoK ron 'runnen-:Kinneinneren;

Specication of Letters Batent.

i Patented June i0,

Application iled February 16, 1918. Serial No. 217,702.

To all wwm t may concern.'

. Be it known that I, CARL H. ZWERMANN, a citizen of the United States, residing et Kalamazoo, Michigan, have invented certain new and useful Improvements in Trucks for` Tunnel-Kilns, of which the :following is a specification; This invention relates to improvements in trucks for tunnel kilns.

The. objects of thel invention are: i First, to provide a simple, effective und compact' construction of such truck.

Second, to provide anV improved construction of truckwherein it will not be necessary to renew the tire clay, tile or brick, or rebuild the same at frequent intervals.

Objects which relate to details und to econoinies of construction will definitely appear from thedetailed description to follow.

I accomplish the objects of my invention by the devices and means described in the following specification. rlhe invention is clearly delin'ed and pointed out in the claims.

A structure which is a preferred embodi` ment of my invention is fully illustrated in the accompanying drawing forming a part of this specification, in which: 1

Figure l is a rear end elevational view ot the truck l nbodying the features of iny 1nvention. l

Fig. H is a central detail sectional eleyation, teken on a line corresponding to line 2 2 of Fig. l.

Fig. IH -is a detail plan View of the structure illustrated in Fig. I.

Fig. IV is a detail perspective view ot one of the tire clay bricks or tiles forming the ireproof platform or body of the truck.

In the drawings, similar numerals of reference refer to similar parts throughout the y several views;

liti

Considering the lettered parts of ,the drawing, 1, 1 ere the side channel bars of a truck connected to form a frame by the channel pieces 2, p truck wheels 3, 3 one of which isgrooved to properly engage the rail andthe other of which is Het on its periphery to y ermit of expansion and contreetionwhen su jectedto the heat of the kiln.

4 is the axle carried by the said ,truck wheels 5 l the front and rear cross channel bars 'centrelly to sev'e the other parts of the'trck from iniury.:v ,f f

6 is u sheetm'fllnl platform disposed upon bricks, that is the 2. These are supported on is a cast iron bumper securedr the top` of the angle frame. form are' disposed transverse with channel beams 7 modete the attachment end plates lO. The space between `the beains 7 is filled lwith kieselguhr 8.

The side plates 9 are secured in any snitable way to the sides of the truck and extend down to form flanges for engagement with the usual sand troughs disposed within the Gn this plat lll-beams 7, 7 at each end to accom of the front and rear ltunnel-kiln. Front andren-rend plates 10 are provided as indicated.

On the -bennisi', 7 are u series oire brick or tiles ll, l2, 12 21nd 13, preferably made in three overlapping sections, the upper ends of which are shouldered to interlock the one The rear row ll of these with the other.

rou' at the rear end of the truck, is provided with n, transverse channel l1 within which is diqiosed the clamping plate l5, through which ure disposed the clamping bolts lll, which extend through the brick from the trout' to rear of the truck.

The front row of bricks 13 provided with u transverse channel 153 Within which is disposed nn ongle bar 16 having its for- Ward edge projecting beyond vthe front ot' the truck and in position to enter into the channel ll of the next 'succeeding t ick. This channel bar 16 is covered with la ers of asbestos to protect it from the undue heet. lt will be seen that the longitudinal bolts through these bricks anchor the same secui-ely together and owing te the shouldered arrangement at the upper part, the uccurnulotions of dust and sand cannot enter between the brick and cause them to separate. The upper deck of the truck can be easily kept entirely clean and thereby all necessity for relaying the tire brick in the platformA is avoided and the truck een ously until worn out. However, when the bricks are worn out theyl can be very read ily replaced by withdrawing the;bolts. As the fire brick form a very substantial protection for the metal parts ofthe truck below, it is thus possible to keep lthe Vtruck in use for a long time per deck when itv-has become worn out cr burned out or for other reasons rendered unf` usable. l

I desire to-stete that the details oitthe can be considerably@ modified without departingfrorn my inven-` structure here illustrated tion which is cleerly p inted ont in the pended claimS.

be used continuroo by merely renewing' the upitil . vided with channels at front and rear, longitudinal bolts disposed through the said tiles to retain the same, a fiat plate disposed in one channel and an angle bar disposed in the other channel with a projecting edge, and an asbestos layer on the said projecting edge, all coacting substantially as described for the purpose specified.

2. In a kiln truck, the combination of the truck structure, a platform of sheet metalthereon, transverse beams upon the said platform with kieselguhr therebetween, tile in sections resting upon the said Lbeams and having shouldered projecting parts interlocking at their upper surfaces, and bolts disposed through the-said tiles to retain the same, all coacting substantially as described for the purpose specified] l 3. In Aa tunnel-kiln truck structure the combination of a platform, shouldered tile therethrough, and a bar engaged by said bolts v,rejecting from one end to form an interlock with the next succeeding truck, all coacting as specified.

4. In a truck for a tunnel kiln, the come bination of transversely disposed tile with shouldered interlocking parte, longitudinal bolts therethrough, and bars disposed to receive the said bolts andform projections for interlocking of the trucks. A Y

5. In a kiln truck, the combination of a truck structure, platform, spaced beams disposed `upon said platform with kieselguhr therebetween, and shouldered tile disposed upon and supported by said bars and inter-l locking with each other, and means4 for securing said tile in position.

In witness whereof, I have hereunto set my hand and seal in the presence of two witnesses.

CARL H. ZWERMANN. [L. 5.] -Witnessesz MABEL B. LAWRENCE, ALFREDJ. MILLS. 

